[M4] Text scripting v0: comandi base + interpreter

[davidesidoti]

Acceptance criteria:

• Script con comandi tipo:

  • moveTo x y
  • pickNearest tag
  • placeTo machineId port
  • wait ticks

• Error messages chiari con linea e motivo

Tasks:

• Parser line-based
• Interpreter
• Binding a task system
• Error reporting